In water, which of the following gases has the highest Henry's law constant at 293 K ?
In water, which of the following gases has the highest Henry's law constant at 293 K ?
$\mathrm{N}_2$
$\mathrm{O}_2$
He
$\mathrm{H}_2$
Solution
\begin{array}{lll} Gas & Temperature & \mathbf{K}_{\mathbf{H}} / \mathbf{k b a r} \\He & 293 & 144.97 \\\mathrm{H}_2 & 293 & 69.16 \\\mathrm{O}_2 & 293 & 34.86 \\\mathrm{~N}_2 & 293 & 76.48\end{array}
So, He has the highest Henry's law constant.